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| var BreadcrumbTaskDynamic, ChapterSectionMixin, CrumbMixin, React, ResizeListenerMixin, TaskStepActions, TaskStepStore, TaskStore, _, ref1, ref2;
React = require('react');
ref1 = require('../../flux/task-step'), TaskStepActions = ref1.TaskStepActions, TaskStepStore = ref1.TaskStepStore;
TaskStore = require('../../flux/task').TaskStore;
_ = require('underscore');
CrumbMixin = require('./crumb-mixin');
ref2 = require('openstax-react-components'), ChapterSectionMixin = ref2.ChapterSectionMixin, ResizeListenerMixin = ref2.ResizeListenerMixin;
BreadcrumbTaskDynamic = require('../breadcrumb').BreadcrumbTaskDynamic;
module.exports = React.createClass({
displayName: 'Breadcrumbs',
mixins: [ChapterSectionMixin, CrumbMixin, ResizeListenerMixin],
propTypes: {
id: React.PropTypes.string.isRequired,
currentStep: React.PropTypes.number.isRequired,
goToStep: React.PropTypes.func.isRequired
},
getInitialState: function() {
return {
updateOnNext: true,
hoverCrumb: this.props.currentStep,
shouldShrink: null,
crumbsWidth: null
};
},
componentWillMount: function() {
var crumbs, listeners;
listeners = this.getMaxListeners();
Iif ((listeners != null) && (listeners + 1) > 10) {
TaskStepStore.setMaxListeners(listeners + 1);
}
TaskStore.on('task.beforeRecovery', this.stopUpdate);
TaskStore.on('task.afterRecovery', this.update);
return crumbs = this.getCrumableCrumbs();
},
componentDidMount: function() {
return this.calculateCrumbsWidth();
},
calculateCrumbsWidth: function(crumbDOM) {
var crumbsWidth, currentCrumbWidth;
Eif (this.isMounted()) {
currentCrumbWidth = 0;
crumbsWidth = _.reduce(this.refs, function(memo, ref) {
var computedStyle, refDOM, refDOMBox;
refDOM = ref.getDOMNode();
computedStyle = window.getComputedStyle(refDOM);
refDOMBox = refDOM.getBoundingClientRect();
currentCrumbWidth = refDOMBox.width + parseInt(computedStyle.marginRight) + parseInt(computedStyle.marginLeft);
return currentCrumbWidth + memo;
}, 0);
crumbsWidth += currentCrumbWidth;
Iif (crumbsWidth > this.state.crumbsWidth) {
return this.setState({
crumbsWidth: crumbsWidth
});
}
}
},
componentWillUnmount: function() {
TaskStepStore.setMaxListeners(10);
TaskStore.off('task.beforeRecovery', this.stopUpdate);
return TaskStore.off('task.afterRecovery', this.update);
},
componentDidUpdate: function(prevProps, prevState) {
if (this.didWidthChange(prevState, this.state)) {
return this.setShouldShrink(this.state);
}
},
componentWillReceiveProps: function(nextProps) {
return this.setState({
hoverCrumb: nextProps.currentStep
});
},
crumbMounted: function() {
Iif (this.state.crumbsWidth != null) {
return this.calculateCrumbsWidth();
}
},
didWidthChange: function(prevState, currentState) {
return currentState.crumbsWidth !== prevState.crumbsWidth || currentState.componentEl.width !== prevState.componentEl.width;
},
setShouldShrink: function(sizes) {
var shouldShrink;
shouldShrink = sizes.componentEl.width < this.state.crumbsWidth;
return this.setState({
shouldShrink: shouldShrink
});
},
shouldComponentUpdate: function(nextProps, nextState) {
return nextState.updateOnNext;
},
update: function() {
return this.setState({
updateOnNext: true
});
},
stopUpdate: function() {
return this.setState({
updateOnNext: false
});
},
updateHoverCrumb: function(hover) {
return this.setState({
hoverCrumb: hover
});
},
render: function() {
var classes, crumbs, currentStep, goToStep, ref3, stepButtons;
crumbs = this.getCrumableCrumbs();
ref3 = this.props, currentStep = ref3.currentStep, goToStep = ref3.goToStep;
stepButtons = _.map(crumbs, (function(_this) {
return function(crumb, crumbIndex) {
var crumbStyle;
crumbStyle = {
zIndex: crumbs.length - Math.abs(_this.state.hoverCrumb - crumbIndex)
};
return React.createElement(BreadcrumbTaskDynamic, {
"onMouseEnter": _this.updateHoverCrumb.bind(_this, crumbIndex),
"onMouseLeave": _this.updateHoverCrumb.bind(_this, _this.props.currentStep),
"onMount": _this.crumbMounted,
"style": crumbStyle,
"crumb": crumb,
"currentStep": currentStep,
"goToStep": goToStep,
"key": "breadcrumb-" + crumb.type + "-" + crumb.key,
"ref": "breadcrumb-" + crumb.type + "-" + crumb.key
});
};
})(this));
classes = 'task-breadcrumbs';
Iif (this.state.shouldShrink) {
classes += ' shrink';
}
return React.createElement("div", {
"className": classes
}, stepButtons);
}
});
|